Maniglio, Mauro; Park, Il Jung; Zumstein, Matthias; Kuenzler, Michael; McGarry, Michelle H; Lee, Thay Q (2021). The Critical Size of Ulnar Styloid Fragment for the DRUJ Stability. Journal of wrist surgery, 10(5), pp. 385-391. Thieme 10.1055/s-0041-1726309
Full text not available from this repository. (Request a copy)Background Ulnar styloid fractures can be associated with clinically significant instability of the distal radioulnar joint (DRUJ). However, the exact fragment size that results in DRUJ instability is unknown. Purpose The objective of this study was to determine the critical size of an ulnar styloid fracture that would result in a significant increase in DRUJ translation and forearm rotation. Methods Eight cadaveric specimens were used to investigate the effects of three different ulnar styloid fracture sizes on DRUJ instability: tip fracture, base fracture, and a fracture including the fovea. Forearm rotation and dorsopalmar DRUJ translation were measured after each sequential increase in fracture size. Results Relative to the uninjured state, a significant increase in forearm rotation and dorsopalmar translation was found for all three fractures. However, the fovea fracture showed a statistically significant increase in forearm rotation compared with all other fracture types and a statistically significant increase in total dorsopalmar translation compared with the tip fracture. Conclusion In this study, ulnar styloid fractures involving the fovea resulted in significantly greater DRUJ instability comparted to tip and base fractures alone. This study provides important biomechanical data regarding the critical size of ulnar styloid fractures that result in DRUJ instability and may aid in the surgical decision-making algorithm in these patients.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery |
UniBE Contributor: |
Zumstein, Matthias, Künzler, Michael |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
2163-3916 |
Publisher: |
Thieme |
Language: |
English |
Submitter: |
Kathrin Aeschlimann |
Date Deposited: |
10 Nov 2021 17:09 |
Last Modified: |
24 Jan 2024 16:55 |
Publisher DOI: |
10.1055/s-0041-1726309 |
PubMed ID: |
34631290 |
Uncontrolled Keywords: |
TFCC distal radioulnar joint distal radioulnar ligaments distal radius fracture ulnar styloid fracture |
URI: |
https://boris.unibe.ch/id/eprint/160096 |
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